$ git clone -n https://gitee.com/wency_cn/sscg_1770914089.git /var/lib/mock/dist-an23-build-514236-75110/root/chroot_tmpdir/scmroot/sscg_1770914089
Cloning into '/var/lib/mock/dist-an23-build-514236-75110/root/chroot_tmpdir/scmroot/sscg_1770914089'...
$ git fetch origin b223a3bfcb61f45945f4093fc84f8e0f597076ac:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/sscg_1770914089
 * [new ref]         b223a3bfcb61f45945f4093fc84f8e0f597076ac -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b223a3b Update code from upstream